EP1688526A1 - Tub for washing machines - Google Patents
Tub for washing machines Download PDFInfo
- Publication number
- EP1688526A1 EP1688526A1 EP05256931A EP05256931A EP1688526A1 EP 1688526 A1 EP1688526 A1 EP 1688526A1 EP 05256931 A EP05256931 A EP 05256931A EP 05256931 A EP05256931 A EP 05256931A EP 1688526 A1 EP1688526 A1 EP 1688526A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tub
- weight
- tub body
- receiving part
- balance weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/265—Counterweights mounted to the tub; Mountings therefor
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
- D06F37/268—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for suspension devices
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
- D06F39/125—Supporting arrangements for the casing, e.g. rollers or legs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Definitions
- the present invention relates to a tub for washing machines. It more particularly relates to a tub for washing machines having a balance weight integrally formed at the tub. It still more particularly relates to arrangements which eliminate the necessity of providing additional fixing units for fixing the balance weight to the tub, whereby the tub and the balance weight are formed in a simple structure.
- a washing machine is a machine that removes contaminants from clothes or bedclothes and the like (hereinafter referred to as "laundry") received in a drum using interaction of water and detergent.
- the washing machine performs washing, rinsing, spin-drying, and drying operations in succession to clean the laundry.
- FIG. 1 is a sectional view illustrating an example of a drum type washing machine 1 with a conventional tub mounted therein
- FIG. 2 is a perspective view of the conventional tub of FIG. 1 illustrating a balance weight mounted at the conventional tub.
- the conventional drum type washing machine 1 comprises: a cabinet 2 forming the outer appearance of the drum type washing machine 1; a tub 8 horizontally mounted in the cabinet 2 such that impact and vibration generated from the tub 8 are effectively absorbed by springs 4 and a damper 6; a drum 10 rotatably disposed in the tub 8 for washing laundry placed therein; a plurality of lifters 12 attached to the inside surface of the drum 10 for lifting the laundry to a predetermined height, when the drum 10 is rotated, such that the laundry falls from the predetermined height due to gravity; and a motor 18 mounted at the rear of the tub 8, the motor 18 being connected to a rotary shaft of the drum 10 via pulleys 14 and a belt 16.
- a cabinet cover 22 having a laundry inlet/outlet hole 20 formed at the center thereof such that laundry can be put into or removed from the drum 10 through the laundry inlet/outlet hole 20.
- a door 24 for opening or closing the laundry inlet/outlet hole 20.
- a control panel 28 having electric field parts 26 for controlling the operation of the drum type washing machine 1 mounted therein.
- a gasket 29 for reducing impact generated when the drum 10 is rotated and serving as a packing member for preventing leakage of washing water.
- a balance weight 30 is attached to the front part of the tub 8 for eliminating unbalance in weight of the tub 8 due to the pulleys 14, the belt 16, and the motor 18.
- the balance weight 30 is a heavy weight member, such as a concrete material or iron, which is injected into a mold and then hardened.
- the balance weight 30 is disposed along the front edge part of the tub 8.
- the balance weight 30 is securely fixed to the front edge part of the tub 8 by means of fixing units 32.
- Each of the fixing units 32 comprises: a fixing boss 34 protruded forward from the front edge part of the tub 8; a through-hole 36 formed at the balance weight 30 such that the fixing boss 34 is inserted through the through-hole 36; and a fixing bolt 38 threadedly engaged with the fixing boss 34 for securely fixing the balance weight 30 to the front surface of the tub 8.
- the balance weight 30 is separately manufactured, and is then attached to the front surface of the tub 8 by means of the fixing units 32. As a result, the number of parts is increased, and the manufacturing costs of the parts are increased. Furthermore, the balance weight attaching process is complicated.
- the fixing bosses 34 of the fixing units 32 may be damaged due to the vibration of the tub 8 while the drum type washing machine 1 is operated, and therefore, the balance weight 30 may be accidentally separated from the tub 8.
- the tub 8 is vibrated back and forth, right and left, and up and down in the cabinet 2 while the drum type washing machine 1 is operated.
- the drum type washing machine 1 is designed such that there is provided sufficient space around the tub 8 in order to prevent collision of the tub 8 with the cabinet 2.
- the provision of sufficient space between the tub 8 and the cabinet cover 22 is difficult due to the balance weight 30. If sufficient space is provided between the tub 8 and the cabinet cover 22, the size of the drum type washing machine 1 is increased.
- FIG. 3 is a sectional view illustrating another example of a drum type washing machine 40 with a conventional tub mounted therein.
- the drum type washing machine 40 shown in FIG. 3 is a drum type washing machine with drying function that is capable of performing washing, rinsing, spin-drying, and drying operations in succession.
- the conventional drum type washing machine with drying function 40 comprises: a control panel 41 mounted at the top of the washing machine; a drying duct 44 disposed on the tub 8 while one end of the drying duct 44 communicates with the upper part of the gasket 29, the drying duct 44 having a heater 42 and a blower 43 mounted therein; and a condensing duct 46, having one end connected to the lower part of the rear surface of the tub 8 and the other end connected to the other end of the drying duct 44, for condensing moisture contained air circulating in the washing machine.
- Other components of the drum type washing machine with drying function 40 are identical in construction and operation to those of the previously described drum type washing machine 1, and therefore, a detailed description thereof will not be given.
- the air condensed in the condensing duct 46 is blown by the blower 43 and heated by the heater 42. As a result, the condensed air is changed into hot wind.
- the hot wind is supplied into the drum 10 through one end of the drying duct 44 to dry the laundry received in the drum 10.
- the present invention seeks to provide an improved washing machine.
- a first aspect of the invention provides a tub for washing machines, comprising: a tub body; a weight receiving part formed at the tub body; and a balance weight integrally formed at the weight receiving part by injection molding.
- the balance weight may be made of a concrete material or a metal material having a low melting point.
- the tub body may comprise: a front tub having an inlet formed at the front surface thereof and the rear surface of which is opened; and a rear tub attached to the rear surface of the front tub, the weight receiving part being formed at the front tub and/or the rear tub.
- the weight receiving part may be formed at the outer circumferential surface of the tub body.
- the weight receiving part may be defined by ribs protruded from the tub body.
- the weight receiving part may comprise: a vertical rib protruded outward from the outer circumferential surface of the tub body while the vertical rib is perpendicular to the outer circumferential surface of the tub body; and a horizontal rib formed at the tip end of the vertical rib while the horizontal rib is parallel with the outer circumferential surface of the tub body.
- the weight receiving part may be formed along the outer circumference of the tub body.
- the weight receiving part may comprise: a vertical rib protruded outward from the outer circumferential surface of the tub body along the outer circumference of the tub body while the vertical rib is perpendicular to the outer circumferential surface of the tub body; and a horizontal rib protruded forward or rearward from the tip end of the vertical rib while the horizontal rib is parallel with the outer circumferential surface of the tub body.
- the tub body may be mounted in a cabinet in a shock-absorbing fashion, and the weight receiving part has collapsed sections, which are opposite to both side surfaces of the cabinet, the collapsed sections being collapsed toward the tub body.
- the horizontal rib may protrude from the tip end of the vertical rib further forward than the front surface of the tub body.
- the tub body may be provided at the front surface thereof with an inlet, and the tub further comprises: a cylindrical rib disposed at the inlet of the tub body while the cylindrical rib is protruded forward from the tub body.
- the tub may further comprise: a curling part formed at the tip end of the cylindrical rib, to which a gasket is connected, and the gasket is disposed between the inlet of the tub body and a laundry inlet/outlet hole of a cabinet cover disposed in front of the tub body.
- the balance weight may comprise: a first weight disposed between the vertical and horizontal ribs and the outer circumferential surface of the tub body; and a second weight disposed between the vertical and cylindrical ribs and the front surface of the tub body, the second weight being integrally molded with the first weight.
- the tub may further comprise: at least one motion preventing protrusion protruded from the front surface of the tub body for preventing motion of the balance weight.
- the at least one motion preventing protrusion is provided at the tip end thereof with a separation preventing extension for preventing the balance weight from being separated from the tub body.
- the at least one motion preventing protrusion may comprise a plurality of motion preventing protrusions arranged at the front surface of the tub body in the circumferential direction while being spaced apart from one another.
- the balance weight may be injected into the weight receiving part formed at one side of the tub body, and may then be hardened in the weight receiving part.
- the balance weight is integrally attached to the tub body, which eliminates the necessity of providing additional fixing units for fixing the balance weight to the tub body, and therefore, the balance weight and the tub are formed in a simple structure.
- the drum type washing machine 50 comprises: a cabinet 52 forming the outer appearance of the drum type washing machine 50; a tub body 58 horizontally mounted in the cabinet 52 such that impact and vibration generated from the tub 8 are effectively absorbed by springs 54 and a damper 56; a drum 60 rotatably disposed in the tub body 58 for washing laundry placed therein; a plurality of lifters 62 attached to the inside surface of the drum 60 for lifting the laundry to a predetermined height, when the drum 60 is rotated, such that the laundry falls from the predetermined height due to gravity; a motor 68 mounted at the rear of the tub body 58, the motor 68 being connected to a rotary shaft of the drum 60 via pulleys 64 and a belt 66; and a balance weight 80 integrally formed at the tub body 58 for eliminating unbalance in weight of the tub body 58.
- a cabinet cover 72 having a laundry inlet/outlet hole 70, through which laundry can be put into or removed from the drum 60.
- a door 74 for opening or closing the laundry inlet/outlet hole 70.
- a control panel 78 having electric field parts 76 for controlling the operation of the drum type washing machine 50 mounted therein.
- a gasket 79 for reducing impact generated when the drum 60 is rotated and serving as a packing member for preventing leakage of washing water.
- a weight receiving part 90 At the outer circumferential surface of the tub body 58 is formed a weight receiving part 90, in which the balance weight 80 is received by injection molding such that unbalance in weight of the tub body 58 due to the pulleys 64, the belt 66, the motor 68, and other parts is eliminated by the balance weight 80.
- the tub body 58 comprises: a front tub 58A having an inlet formed at the front surface thereof and the rear surface of which is opened; and a rear tub 58B attached to the rear surface of the front tub 58A and the front surface of which is opened.
- the weight receiving part 90 is formed at the front tub 58A.
- it may additionally or alternatively be formed at the rear tub 58B.
- the weight receiving part 90 is formed at the front tub 58A.
- a curling part 59A At the inlet of the front tub 58A is formed a curling part 59A, to which the gasket 79 is connected.
- the curling part 59A is bent in such a manner that the curling part 59A is protruded forward a predetermined height from the inlet of the front tub 58A and is then extended outward.
- the balance weight 80 is a heavy weight member, such as a concrete material or a metal material.
- the metal material has a low melting point.
- the balance weight 80 is injected into the weight receiving part 90 in a fluid state, and is then hardened in the weight receiving part 90. As a result, the balance weight 80 is integrally attached to the tub body 58.
- the weight receiving part 90 is formed at the outer circumferential surface of the front tub 58A in the shape of a rib. Also, the weight receiving part 90 is formed along the outer circumference of the front tub 58A.
- the weight receiving part 90 comprises:
- the balance weight 80 is injected into the space defined between the vertical and horizontal ribs 92 and 93 and the outer circumferential surface of the front tub 58A, and is then hardened in the space. As a result, the ringshaped balance weight 80 is integrally attached along the outer circumferential surface of the front tub 58A.
- the weight receiving part 90 has collapsed sections 94, which are opposite to both side surfaces of the cabinet 52. Specifically, the collapsed sections 94 of the weight receiving part 90 are collapsed toward the tub body 58 to prevent collision of the tub body 58 and the cabinet 52.
- the collapsed sections 94 of the weight receiving part 90 are vertically arranged such that the collapsed sections 94 of the weight receiving part 90 are parallel with the side surfaces of the cabinet 52.
- the front tub 58A is molded through injection molding of synthetic resin such that the weight receiving part 90 is formed at the outer circumferential surface of the front tub 58A along the outer circumference of the front tub 58A.
- the rear tub 58B is also molded through injection molding of synthetic resin.
- the opened front surface of the rear tub 58B is connected to the opened rear surface of the front tub 58A. As a result, the tub body 58 is completed.
- a concrete material or a metal material having a low melting point is injected into the weight receiving part 90 of the completed tub body 58 in a fluid state, and is then hardened in the weight receiving part 90.
- the balance weight 80 is integrally attached to the front tub 58A along the outer circumferential surface of the front tub 58A.
- the balance weight 80 is formed in the shape of a ring, which surrounds the outer circumferential surface of the front tub 58A.
- the balance weight 80 is stably and securely attached to the tub body without the provision of additional fixing units. Furthermore, the molding process of the balance weight 80 and the fixing process of the balance weight 80 are simultaneously performed, and therefore, the assembly of the tub body 58 and the balance weight 80 is easily accomplished.
- the tub body 58 is vibrated back and forth, right and left, and up and down. However, the vibration of the tub body 58 is absorbed by elastic force of the springs 54 and damping force of the damper 56.
- the balance weight is not disposed at the front surface of the tub body 58, which is distinguished from the conventional art. Consequently, the provision of sufficient space between the tub body 58 and the cabinet cover 72 is easily accomplished.
- the drying duct can easily be disposed between the tub body 58 and the cabinet cover 72.
- the weight receiving part 90 and the balance weight 80 are disposed along the outer circumferential surface of the front tub 58A, the collapsed sections 94 of the weight receiving part 90 and the balance weight 80 are collapsed toward the tub body 58. Consequently, the provision of space between the tub body 58 and the cabinet cover 52 can easily be accomplished.
- the height of the collapsed sections 94 of the weight receiving part 90 and the balance weight 80 from the tub body 58 is lower than that of other sections of the weight receiving part 90 and the balance weight 80 from the tub body 58. Consequently, the distance between the opposite side surfaces of the cabinet 52 and the tub body 58 is not greatly decreased.
- the tub for drum type washing machines is characterized by a tub body 58, which comprises: a front tub 58A having an inlet formed at the front surface thereof and the rear surface of which is opened; and a rear tub 58B attached to the rear surface of the front tub 58A and the front surface of which is opened, and a cylindrical rib 59 disposed around the inlet of the front tub 58A while the cylindrical rib 59 is protruded forward a predetermined height from the front tub 58A.
- a curling part 59A At the tip end of the cylindrical rib 59 is formed a curling part 59A, to which a gasket 79 is connected.
- the curling part 59A is bent in such a manner that the curling part 59A is extended outward.
- the tub for drum type washing machines is also characterized by a weight receiving part 96 comprising: a vertical rib 97 protruded outward from the outer circumferential surface of the front tub 58A along the outer circumference of the front tub 58A while the vertical rib 92 is perpendicular to the outer circumferential surface of the front tub 58A; and a horizontal rib 98 formed such that the horizontal rib 98 is protruded from the tip end of the vertical rib 97 further forward than the front surface of the front tub 58A while the horizontal rib 98 is parallel with the outer circumferential surface of the front tub 58A.
- the tub for drum type washing machines is characterized by a balance weight 82 comprising: a first weight 84 disposed between the vertical and horizontal ribs 97 and 98 and the outer circumferential surface of the front tub 58A; and a second weight 86 disposed between the vertical and cylindrical ribs 97 and 59 and the front surface of the front tub 58A, the second weight 86 being integrally molded with the first weight 84.
- the manufacturing process of the tub for drum type washing machined with the above-stated construction according to the second embodiment will be described below.
- the balance weight 82 is injected into the weight receiving part 96 in a fluid state until the balance weight 82 is filled up to between the tip end of the horizontal rib 98 and the cylindrical rib 59 of the front tub 58A, and is then hardened in the weight receiving part 96. As a result, the balance weight 82 covers the front surface of the front tub 58A.
- the thickness of the second weight 86 disposed at the front surface of the front tub 58A is smaller than that of the first weight 84 disposed at the outer circumferential surface of the front tub 58A. Consequently, the provision of space between the balance weight 82 and the cabinet cover 72 is easily accomplished.
- the balance weight 82 is more stably attached to the tub body 58, and the weight of the balance weight 82 is more greatly increased.
- the tub for drum type washing machines according to the third embodiment is characterized by motion preventing protrusions 100 protruded from the front surface of the front tub 58A for preventing motion of the balance weight 82 received in the weight receiving part 96.
- Other components of the tub for drum type washing machines according to the third embodiment are identical in construction to those of the tub for drum type washing machines according to the second embodiment.
- the motion preventing protrusions 100 are protruded forward from the front surface of the front tub 58A, on which the balance weight 82 is disposed.
- the motion preventing protrusions 100 are arranged at the front surface of the front tub 58A in the circumferential direction while being spaced apart from one another.
- a separation preventing extension 102 for preventing the balance weight 82 from being separated from the front tub 58A. Specifically, the balance weight 82 is caught by the separation preventing extensions 102 such that the balance weight is not separated from the front tub 58A.
- the balance weight 82 is more securely and stably attached to the tub body 58 by means of the motion preventing protrusions 100 having the separation preventing extensions 102.
- the weight receiving part may be formed at the upper part or the lower part of the tub body based on design conditions of the tub body.
- the weight receiving part may be partially formed at the side part of the tub body.
- the weight receiving part may be formed in the shape of a box having an injection port defined by the vertical rib and the horizontal rib.
- the tub for washing machines according to the present invention can have the following effects.
- the balance weight can be injected into the weight receiving part formed at one side of the tub body, and is then hardened in the weight receiving part.
- the balance weight is integrally attached to the tub body, which eliminates the necessity of providing additional fixing units for fixing the balance weight to the tub body, and therefore, the balance weight and the tub are formed in a simple structure.
- the balance weight is integrally attached to the tub body, and therefore, the necessity of providing the fixing units for fixing the balance weight to the tub body is eliminated, the number of parts is decreased, the manufacturing process of the parts is simplified, and the manufacturing costs of the parts are decreased. Especially, accidental separation of the balance weight from the tub body due to damage to the fixing units is effectively prevented.
- the weight receiving part can be formed at the outer circumferential surface of the tub body along the outer circumference of the tub body.
- the balance weight can be disposed such that the balance weight surrounds the outer circumferential surface of the tub body. Consequently, the rigidity of the tub body due to the balance weight is increased, and therefore, deformation of the tub body or damage to the tub body is effectively prevented.
- the balance weight can be integrally molded between the weight receiving part and the tub body, and the motion preventing protrusions, which are provided at the tip ends thereof with the separation preventing extensions, respectively, are protruded forward from the front surface of the tub body. Consequently, the motion of the balance weight and separation of the balance weight from the tub body are effectively prevented.
- the provision of space between the tub body and the cabinet cover can be easily accomplished, and therefore, the collision of the tub body and the cabinet cover can be effectively prevented. Consequently, vibration-preventing design of the drum type washing machine is more easily accomplished.
- the present invention is very useful when a drum type washing machine with drying function having a drying duct disposed in front of the tub body is designed. Also, increase in size of the drum type washing machine can be avoided.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
Description
- The present invention relates to a tub for washing machines. It more particularly relates to a tub for washing machines having a balance weight integrally formed at the tub. It still more particularly relates to arrangements which eliminate the necessity of providing additional fixing units for fixing the balance weight to the tub, whereby the tub and the balance weight are formed in a simple structure.
- A washing machine is a machine that removes contaminants from clothes or bedclothes and the like (hereinafter referred to as "laundry") received in a drum using interaction of water and detergent. The washing machine performs washing, rinsing, spin-drying, and drying operations in succession to clean the laundry.
- FIG. 1 is a sectional view illustrating an example of a drum type washing machine 1 with a conventional tub mounted therein, and FIG. 2 is a perspective view of the conventional tub of FIG. 1 illustrating a balance weight mounted at the conventional tub.
- As shown in FIGS. 1 and 2, the conventional drum type washing machine 1 comprises: a
cabinet 2 forming the outer appearance of the drum type washing machine 1; atub 8 horizontally mounted in thecabinet 2 such that impact and vibration generated from thetub 8 are effectively absorbed bysprings 4 and a damper 6; adrum 10 rotatably disposed in thetub 8 for washing laundry placed therein; a plurality oflifters 12 attached to the inside surface of thedrum 10 for lifting the laundry to a predetermined height, when thedrum 10 is rotated, such that the laundry falls from the predetermined height due to gravity; and amotor 18 mounted at the rear of thetub 8, themotor 18 being connected to a rotary shaft of thedrum 10 viapulleys 14 and abelt 16. - At the front surface of the
cabinet 2 is mounted acabinet cover 22 having a laundry inlet/outlet hole 20 formed at the center thereof such that laundry can be put into or removed from thedrum 10 through the laundry inlet/outlet hole 20. To thecabinet cover 22 is hingedly connected adoor 24 for opening or closing the laundry inlet/outlet hole 20. - At the upper end of the
cabinet cover 22 is mounted acontrol panel 28 havingelectric field parts 26 for controlling the operation of the drum type washing machine 1 mounted therein. Between the laundry inlet/outlet hole 20 and the inlet of thetub 8 is disposed agasket 29 for reducing impact generated when thedrum 10 is rotated and serving as a packing member for preventing leakage of washing water. - In addition, a
balance weight 30 is attached to the front part of thetub 8 for eliminating unbalance in weight of thetub 8 due to thepulleys 14, thebelt 16, and themotor 18. - The
balance weight 30 is a heavy weight member, such as a concrete material or iron, which is injected into a mold and then hardened. Thebalance weight 30 is disposed along the front edge part of thetub 8. Thebalance weight 30 is securely fixed to the front edge part of thetub 8 by means offixing units 32. - Each of the
fixing units 32 comprises: afixing boss 34 protruded forward from the front edge part of thetub 8; a through-hole 36 formed at thebalance weight 30 such that thefixing boss 34 is inserted through the through-hole 36; and afixing bolt 38 threadedly engaged with thefixing boss 34 for securely fixing thebalance weight 30 to the front surface of thetub 8. - When laundry is put into the
drum 10 of the drum type washing machine with the above-stated construction, and the drum type washing machine is operated, a rotating force of themotor 18 is transmitted to thedrum 10 via thepulleys 14 and thebelt 16, and therefore, thedrum 10 is rotated. During the rotation of thedrum 10, washing, rinsing, and spin-drying operations are performed in succession. At this time, back-and-forth, right-and-left, and up-and-down vibration is generated at thetub 8 due to the operation of themotor 18 and thedrum 10. The vibration of thetub 8 is absorbed by elastic force of thesprings 4 and damping force of the damper 6. - However, the conventional drum type washing machine with the above-stated construction has the following problems.
- The
balance weight 30 is separately manufactured, and is then attached to the front surface of thetub 8 by means of thefixing units 32. As a result, the number of parts is increased, and the manufacturing costs of the parts are increased. Furthermore, the balance weight attaching process is complicated. - Furthermore, the
fixing bosses 34 of thefixing units 32 may be damaged due to the vibration of thetub 8 while the drum type washing machine 1 is operated, and therefore, thebalance weight 30 may be accidentally separated from thetub 8. - Meanwhile, the
tub 8 is vibrated back and forth, right and left, and up and down in thecabinet 2 while the drum type washing machine 1 is operated. For this reason, the drum type washing machine 1 is designed such that there is provided sufficient space around thetub 8 in order to prevent collision of thetub 8 with thecabinet 2. - In the drum type washing machine 1, however, the provision of sufficient space between the
tub 8 and thecabinet cover 22 is difficult due to thebalance weight 30. If sufficient space is provided between thetub 8 and thecabinet cover 22, the size of the drum type washing machine 1 is increased. - FIG. 3 is a sectional view illustrating another example of a drum type washing machine 40 with a conventional tub mounted therein. The drum type washing machine 40 shown in FIG. 3 is a drum type washing machine with drying function that is capable of performing washing, rinsing, spin-drying, and drying operations in succession.
- It should be noted that the same or similar elements are denoted by the same reference numerals even though they are depicted in different drawings.
- The conventional drum type washing machine with drying function 40 comprises: a
control panel 41 mounted at the top of the washing machine; adrying duct 44 disposed on thetub 8 while one end of thedrying duct 44 communicates with the upper part of thegasket 29, thedrying duct 44 having aheater 42 and ablower 43 mounted therein; and acondensing duct 46, having one end connected to the lower part of the rear surface of thetub 8 and the other end connected to the other end of thedrying duct 44, for condensing moisture contained air circulating in the washing machine. Other components of the drum type washing machine with drying function 40 are identical in construction and operation to those of the previously described drum type washing machine 1, and therefore, a detailed description thereof will not be given. - The air condensed in the
condensing duct 46 is blown by theblower 43 and heated by theheater 42. As a result, the condensed air is changed into hot wind. The hot wind is supplied into thedrum 10 through one end of thedrying duct 44 to dry the laundry received in thedrum 10. - In the conventional drum type washing machine with drying function 40, however, one end of the
drying duct 44 as well as thebalance weight 30 is disposed between thetub 8 and thecabinet cover 22. Consequently, the provision of an installation space for thedrying duct 44 and thebalance weight 30 is much more difficult. - The present invention seeks to provide an improved washing machine.
- A first aspect of the invention provides a tub for washing machines, comprising: a tub body; a weight receiving part formed at the tub body; and a balance weight integrally formed at the weight receiving part by injection molding.
- The balance weight may be made of a concrete material or a metal material having a low melting point.
- The tub body may comprise: a front tub having an inlet formed at the front surface thereof and the rear surface of which is opened; and a rear tub attached to the rear surface of the front tub, the weight receiving part being formed at the front tub and/or the rear tub.
- The weight receiving part may be formed at the outer circumferential surface of the tub body.
- The weight receiving part may be defined by ribs protruded from the tub body.
- The weight receiving part may comprise: a vertical rib protruded outward from the outer circumferential surface of the tub body while the vertical rib is perpendicular to the outer circumferential surface of the tub body; and a horizontal rib formed at the tip end of the vertical rib while the horizontal rib is parallel with the outer circumferential surface of the tub body.
- The weight receiving part may be formed along the outer circumference of the tub body.
- The weight receiving part may comprise: a vertical rib protruded outward from the outer circumferential surface of the tub body along the outer circumference of the tub body while the vertical rib is perpendicular to the outer circumferential surface of the tub body; and a horizontal rib protruded forward or rearward from the tip end of the vertical rib while the horizontal rib is parallel with the outer circumferential surface of the tub body.
- The tub body may be mounted in a cabinet in a shock-absorbing fashion, and the weight receiving part has collapsed sections, which are opposite to both side surfaces of the cabinet, the collapsed sections being collapsed toward the tub body.
- The horizontal rib may protrude from the tip end of the vertical rib further forward than the front surface of the tub body.
- The tub body may be provided at the front surface thereof with an inlet, and the tub further comprises: a cylindrical rib disposed at the inlet of the tub body while the cylindrical rib is protruded forward from the tub body.
- The tub may further comprise: a curling part formed at the tip end of the cylindrical rib, to which a gasket is connected, and the gasket is disposed between the inlet of the tub body and a laundry inlet/outlet hole of a cabinet cover disposed in front of the tub body.
- The balance weight may comprise: a first weight disposed between the vertical and horizontal ribs and the outer circumferential surface of the tub body; and a second weight disposed between the vertical and cylindrical ribs and the front surface of the tub body, the second weight being integrally molded with the first weight.
- The tub may further comprise: at least one motion preventing protrusion protruded from the front surface of the tub body for preventing motion of the balance weight.
- Preferably, the at least one motion preventing protrusion is provided at the tip end thereof with a separation preventing extension for preventing the balance weight from being separated from the tub body.
- The at least one motion preventing protrusion may comprise a plurality of motion preventing protrusions arranged at the front surface of the tub body in the circumferential direction while being spaced apart from one another.
- The balance weight may be injected into the weight receiving part formed at one side of the tub body, and may then be hardened in the weight receiving part. As a result, the balance weight is integrally attached to the tub body, which eliminates the necessity of providing additional fixing units for fixing the balance weight to the tub body, and therefore, the balance weight and the tub are formed in a simple structure.
- Embodiments of the invention will now be described by way of non-limiting example only, with reference to the drawings, in which:
- FIG. 1 is a sectional view illustrating an example of a drum type washing machine with a conventional tub mounted therein;
- FIG. 2 is a perspective view of the conventional tub of FIG. 1 illustrating a balance weight mounted at the conventional tub;
- FIG. 3 is a sectional view illustrating another example of a drum type washing machine with a conventional tub mounted therein;
- FIG. 4 is a sectional view illustrating a drum type washing machine with a tub according to a first preferred embodiment of the present invention mounted therein;
- FIG. 5 is a perspective view illustrating a tub body of the tub for drum type washing machines according to the first preferred embodiment of the present invention;
- FIG. 6 is a perspective view illustrating the tub for drum type washing machines according to the first preferred embodiment of the present invention;
- FIG. 7 is a sectional view illustrating a drum type washing machine with a tub according to a second preferred embodiment of the present invention mounted therein;
- FIG. 8 is a perspective view illustrating the tub for drum type washing machines according to the second preferred embodiment of the present invention;
- FIG. 9 is a sectional view illustrating a drum type washing machine with a tub according to a third preferred embodiment of the present invention mounted therein; and
- FIG. 10 is a perspective view illustrating the tub for drum type washing machines according to the third preferred embodiment of the present invention.
- As shown in FIGS. 4 to 6, the drum
type washing machine 50 according to the first embodiment comprises: acabinet 52 forming the outer appearance of the drumtype washing machine 50; atub body 58 horizontally mounted in thecabinet 52 such that impact and vibration generated from thetub 8 are effectively absorbed bysprings 54 and adamper 56; adrum 60 rotatably disposed in thetub body 58 for washing laundry placed therein; a plurality oflifters 62 attached to the inside surface of thedrum 60 for lifting the laundry to a predetermined height, when thedrum 60 is rotated, such that the laundry falls from the predetermined height due to gravity; amotor 68 mounted at the rear of thetub body 58, themotor 68 being connected to a rotary shaft of thedrum 60 viapulleys 64 and abelt 66; and abalance weight 80 integrally formed at thetub body 58 for eliminating unbalance in weight of thetub body 58. - At the front surface of the
cabinet 52 is mounted acabinet cover 72 having a laundry inlet/outlet hole 70, through which laundry can be put into or removed from thedrum 60. To thecabinet cover 72 is hingedly connected adoor 74 for opening or closing the laundry inlet/outlet hole 70. - At the upper end of the
cabinet cover 72 is mounted acontrol panel 78 havingelectric field parts 76 for controlling the operation of the drumtype washing machine 50 mounted therein. Between the laundry inlet/outlet hole 70 and the inlet of thetub body 58 is disposed agasket 79 for reducing impact generated when thedrum 60 is rotated and serving as a packing member for preventing leakage of washing water. - At the outer circumferential surface of the
tub body 58 is formed aweight receiving part 90, in which thebalance weight 80 is received by injection molding such that unbalance in weight of thetub body 58 due to thepulleys 64, thebelt 66, themotor 68, and other parts is eliminated by thebalance weight 80. - The
tub body 58 comprises: afront tub 58A having an inlet formed at the front surface thereof and the rear surface of which is opened; and arear tub 58B attached to the rear surface of thefront tub 58A and the front surface of which is opened. In the present embodiment, theweight receiving part 90 is formed at thefront tub 58A. However, in a modification it may additionally or alternatively be formed at therear tub 58B. - In the following description, the
weight receiving part 90 is formed at thefront tub 58A. - At the inlet of the
front tub 58A is formed a curlingpart 59A, to which thegasket 79 is connected. The curlingpart 59A is bent in such a manner that the curlingpart 59A is protruded forward a predetermined height from the inlet of thefront tub 58A and is then extended outward. - The
balance weight 80 is a heavy weight member, such as a concrete material or a metal material. Preferably, the metal material has a low melting point. Specifically, thebalance weight 80 is injected into theweight receiving part 90 in a fluid state, and is then hardened in theweight receiving part 90. As a result, thebalance weight 80 is integrally attached to thetub body 58. - Meanwhile, the
weight receiving part 90 is formed at the outer circumferential surface of thefront tub 58A in the shape of a rib. Also, theweight receiving part 90 is formed along the outer circumference of thefront tub 58A. - Specifically, the
weight receiving part 90 comprises: - a
vertical rib 92 protruded outward from the outer circumferential surface of thefront tub 58A along the outer circumference of thefront tub 58A while thevertical rib 92 is perpendicular to the outer circumferential surface of thefront tub 58A; and ahorizontal rib 93 protruded forward or rearward from the tip end of thevertical rib 92 while thehorizontal rib 93 is parallel with the outer circumferential surface of thefront tub 58A. - The
balance weight 80 is injected into the space defined between the vertical andhorizontal ribs front tub 58A, and is then hardened in the space. As a result, theringshaped balance weight 80 is integrally attached along the outer circumferential surface of thefront tub 58A. - The
weight receiving part 90 has collapsedsections 94, which are opposite to both side surfaces of thecabinet 52. Specifically, thecollapsed sections 94 of theweight receiving part 90 are collapsed toward thetub body 58 to prevent collision of thetub body 58 and thecabinet 52. - The
collapsed sections 94 of theweight receiving part 90 are vertically arranged such that thecollapsed sections 94 of theweight receiving part 90 are parallel with the side surfaces of thecabinet 52. - The manufacturing process, operation, and effects of the tub for drum type washing machines with the above-stated construction according to the first embodiment will be described hereinafter in detail.
- First, the
front tub 58A is molded through injection molding of synthetic resin such that theweight receiving part 90 is formed at the outer circumferential surface of thefront tub 58A along the outer circumference of thefront tub 58A. Similarly, therear tub 58B is also molded through injection molding of synthetic resin. - The opened front surface of the
rear tub 58B is connected to the opened rear surface of thefront tub 58A. As a result, thetub body 58 is completed. - A concrete material or a metal material having a low melting point is injected into the
weight receiving part 90 of the completedtub body 58 in a fluid state, and is then hardened in theweight receiving part 90. As a result, thebalance weight 80 is integrally attached to thefront tub 58A along the outer circumferential surface of thefront tub 58A. - Specifically, the
balance weight 80 is formed in the shape of a ring, which surrounds the outer circumferential surface of thefront tub 58A. - Consequently, the
balance weight 80 is stably and securely attached to the tub body without the provision of additional fixing units. Furthermore, the molding process of thebalance weight 80 and the fixing process of thebalance weight 80 are simultaneously performed, and therefore, the assembly of thetub body 58 and thebalance weight 80 is easily accomplished. - When the drum
type washing machine 50 with the tub, to which the balance weight is integrally attached, mounted therein is operated, an appropriate amount of washing water is supplied into thetub body 58, and a rotating force of themotor 68 is transmitted to thedrum 60 via thepulleys 64 and thebelt 66, and therefore, thedrum 60 is rotated. During the rotation of thedrum 60, washing, rinsing, and spin-drying operations of laundry placed in thedrum 60. - As the
motor 68 and thedrum 60 are rotated as described above, thetub body 58 is vibrated back and forth, right and left, and up and down. However, the vibration of thetub body 58 is absorbed by elastic force of thesprings 54 and damping force of thedamper 56. - According to the present invention, the balance weight is not disposed at the front surface of the
tub body 58, which is distinguished from the conventional art. Consequently, the provision of sufficient space between thetub body 58 and thecabinet cover 72 is easily accomplished. - Since the sufficient space is provided between the
tub body 58 and thecabinet cover 72, a collision of the front surface of thetub body 58 and thecabinet cover 72 due to the vibration of thetub body 58 is effectively prevented. In the case of a drum type washing machine with a drying function, the drying duct can easily be disposed between thetub body 58 and thecabinet cover 72. - Although the
weight receiving part 90 and thebalance weight 80 are disposed along the outer circumferential surface of thefront tub 58A, thecollapsed sections 94 of theweight receiving part 90 and thebalance weight 80 are collapsed toward thetub body 58. Consequently, the provision of space between thetub body 58 and thecabinet cover 52 can easily be accomplished. - Specifically, the height of the
collapsed sections 94 of theweight receiving part 90 and thebalance weight 80 from thetub body 58 is lower than that of other sections of theweight receiving part 90 and thebalance weight 80 from thetub body 58. Consequently, the distance between the opposite side surfaces of thecabinet 52 and thetub body 58 is not greatly decreased. - As shown in FIGS. 7 and 8, the tub for drum type washing machines according to the second embodiment is characterized by a
tub body 58, which comprises: afront tub 58A having an inlet formed at the front surface thereof and the rear surface of which is opened; and arear tub 58B attached to the rear surface of thefront tub 58A and the front surface of which is opened, and acylindrical rib 59 disposed around the inlet of thefront tub 58A while thecylindrical rib 59 is protruded forward a predetermined height from thefront tub 58A. - Components which are identical or similar in construction to those of the first embodiment are indicated by the same reference numerals and a detailed description thereof will not be given.
- At the tip end of the
cylindrical rib 59 is formed a curlingpart 59A, to which agasket 79 is connected. The curlingpart 59A is bent in such a manner that the curlingpart 59A is extended outward. - The tub for drum type washing machines according to the second embodiment is also characterized by a
weight receiving part 96 comprising: avertical rib 97 protruded outward from the outer circumferential surface of thefront tub 58A along the outer circumference of thefront tub 58A while thevertical rib 92 is perpendicular to the outer circumferential surface of thefront tub 58A; and ahorizontal rib 98 formed such that thehorizontal rib 98 is protruded from the tip end of thevertical rib 97 further forward than the front surface of thefront tub 58A while thehorizontal rib 98 is parallel with the outer circumferential surface of thefront tub 58A. - Furthermore, the tub for drum type washing machines according to the second embodiment is characterized by a
balance weight 82 comprising: afirst weight 84 disposed between the vertical andhorizontal ribs front tub 58A; and asecond weight 86 disposed between the vertical andcylindrical ribs front tub 58A, thesecond weight 86 being integrally molded with thefirst weight 84. - Other components, except the
cylindrical rib 59, theweight receiving part 96, and thebalance weight 82 are identical in construction to those of the tub for drum type washing machines according to the first embodiment. - The manufacturing process of the tub for drum type washing machined with the above-stated construction according to the second embodiment will be described below. The
balance weight 82 is injected into theweight receiving part 96 in a fluid state until thebalance weight 82 is filled up to between the tip end of thehorizontal rib 98 and thecylindrical rib 59 of thefront tub 58A, and is then hardened in theweight receiving part 96. As a result, thebalance weight 82 covers the front surface of thefront tub 58A. - The thickness of the
second weight 86 disposed at the front surface of thefront tub 58A is smaller than that of thefirst weight 84 disposed at the outer circumferential surface of thefront tub 58A. Consequently, the provision of space between thebalance weight 82 and thecabinet cover 72 is easily accomplished. - According to the second preferred, the
balance weight 82 is more stably attached to thetub body 58, and the weight of thebalance weight 82 is more greatly increased. - As shown in FIGS. 9 and 10, the tub for drum type washing machines according to the third embodiment is characterized by
motion preventing protrusions 100 protruded from the front surface of thefront tub 58A for preventing motion of thebalance weight 82 received in theweight receiving part 96. Other components of the tub for drum type washing machines according to the third embodiment are identical in construction to those of the tub for drum type washing machines according to the second embodiment. - Specifically, the
motion preventing protrusions 100 are protruded forward from the front surface of thefront tub 58A, on which thebalance weight 82 is disposed. Themotion preventing protrusions 100 are arranged at the front surface of thefront tub 58A in the circumferential direction while being spaced apart from one another. - At each of the tip ends of the
motion preventing protrusions 100 is formed aseparation preventing extension 102 for preventing thebalance weight 82 from being separated from thefront tub 58A. Specifically, thebalance weight 82 is caught by theseparation preventing extensions 102 such that the balance weight is not separated from thefront tub 58A. - As a result, the up-and-down and right-and-left motion and the circumferential rotation of the
balance weight 82 is effectively prevented by themotion preventing protrusions 100, and the back-and-forth motion ofbalance weight 82 is effectively prevented by theseparation preventing extensions 102. - Consequently, the
balance weight 82 is more securely and stably attached to thetub body 58 by means of themotion preventing protrusions 100 having theseparation preventing extensions 102. - Although the embodiments have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope of the invention as disclosed in the claims.
- For example, the weight receiving part may be formed at the upper part or the lower part of the tub body based on design conditions of the tub body. Alternatively, the weight receiving part may be partially formed at the side part of the tub body. Furthermore, the weight receiving part may be formed in the shape of a box having an injection port defined by the vertical rib and the horizontal rib.
- As apparent from the above description, the tub for washing machines according to the present invention can have the following effects.
- The balance weight can be injected into the weight receiving part formed at one side of the tub body, and is then hardened in the weight receiving part. As a result, the balance weight is integrally attached to the tub body, which eliminates the necessity of providing additional fixing units for fixing the balance weight to the tub body, and therefore, the balance weight and the tub are formed in a simple structure.
- Since the balance weight is integrally attached to the tub body, and therefore, the necessity of providing the fixing units for fixing the balance weight to the tub body is eliminated, the number of parts is decreased, the manufacturing process of the parts is simplified, and the manufacturing costs of the parts are decreased. Especially, accidental separation of the balance weight from the tub body due to damage to the fixing units is effectively prevented.
- Moreover, the weight receiving part can be formed at the outer circumferential surface of the tub body along the outer circumference of the tub body. As a result, the balance weight can be disposed such that the balance weight surrounds the outer circumferential surface of the tub body. Consequently, the rigidity of the tub body due to the balance weight is increased, and therefore, deformation of the tub body or damage to the tub body is effectively prevented.
- In addition, the balance weight can be integrally molded between the weight receiving part and the tub body, and the motion preventing protrusions, which are provided at the tip ends thereof with the separation preventing extensions, respectively, are protruded forward from the front surface of the tub body. Consequently, the motion of the balance weight and separation of the balance weight from the tub body are effectively prevented.
- Furthermore, the provision of space between the tub body and the cabinet cover can be easily accomplished, and therefore, the collision of the tub body and the cabinet cover can be effectively prevented. Consequently, vibration-preventing design of the drum type washing machine is more easily accomplished. In particular, the present invention is very useful when a drum type washing machine with drying function having a drying duct disposed in front of the tub body is designed. Also, increase in size of the drum type washing machine can be avoided.
Claims (13)
- A tub for washing machines, comprising:a tub body (58);a weight receiving part (90; 96) formed at the tub body (58); anda balance weight (80; 82) integrally formed at the weight receiving part (90; 96) by injection molding.
- The tub as set forth in claim 1, wherein the balance weight (80; 82) is made of a concrete material or a metal material having a low melting point.
- The tub as set forth in claim 1, wherein the tub body (58) comprises:a front tub (58A), front and rear surfaces of which are opened; anda rear tub (58B) attached to the rear surface of the front tub (58A),the weight receiving part (90; 96) being formed at the front tub (58A) and/or the rear tub (58B).
- The tub as set forth in claim 1, wherein the weight receiving part (90; 96) is formed at the outer circumferential surface of the tub body (58).
- The tub as set forth in claim 4, wherein the weight receiving part (90; 96) is defined by ribs protruded from the tub body (58).
- The tub as set forth in claim 5, wherein the weight receiving part (90; 96) is formed along the outer circumference of the tub body (58).
- The tub as set forth in claim 6, wherein the weight receiving part (90; 96) comprises:a vertical rib (92; 97) protruded outward from the outer circumferential surface of the tub body (58) along the outer circumference of the tub body (58) while the vertical rib (92; 97) is perpendicular to the outer circumferential surface of the tub body (58); anda horizontal rib (93; 98) protruded forward or rearward from the tip end of the vertical rib (92; 97) while the horizontal rib (93; 98) is parallel with the outer circumferential surface of the tub body (58).
- The tub as set forth in claim 7, wherein
the tub body (58) is mounted in a cabinet in a shock-absorbing fashion, and
the weight receiving part (90; 96) has collapsed sections (94), which are opposite to both side surfaces of the cabinet, the collapsed sections (94) being collapsed toward the tub body (58). - The tub as set forth in claim 7, wherein the horizontal rib (98) is protruded from the tip end of the vertical rib (97) further forward than the front surface of the tub body (58).
- The tub as set forth in claim 9, wherein
the tub body (58) is provided at the front surface thereof with an inlet, and
the tub further comprises: a cylindrical rib (59) disposed at the inlet of the tub body (58) while the cylindrical rib (59) is protruded forward from the tub body (58). - The tub as set forth in claim 10, wherein the balance weight (82) comprises:a first weight (84) disposed between the vertical and horizontal ribs (97, 98) and the outer circumferential surface of the tub body (58); anda second weight (86) disposed between the vertical and cylindrical ribs (97, 59) and the front surface of the tub body (58), the second weight (86) being integrally molded with the first weight (84).
- The tub as set forth in claim 11, further comprising:at least one motion preventing protrusion (100) protruded from the front surface of the tub body (58) for preventing motion of the balance weight (82).
- The tub as set forth in claim 12, wherein the at least one motion preventing protrusion (100) is provided at the tip end thereof with a separation preventing extension (102) for preventing the balance weight (82) from being separated from the tub body (58).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050010537A KR100697201B1 (en) | 2005-02-04 | 2005-02-04 | Drum type washer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1688526A1 true EP1688526A1 (en) | 2006-08-09 |
EP1688526B1 EP1688526B1 (en) | 2010-03-17 |
Family
ID=36282656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05256931A Expired - Fee Related EP1688526B1 (en) | 2005-02-04 | 2005-11-10 | Tub for washing machines |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060174666A1 (en) |
EP (1) | EP1688526B1 (en) |
JP (1) | JP2006212419A (en) |
KR (1) | KR100697201B1 (en) |
CN (1) | CN1814899A (en) |
DE (1) | DE602005019969D1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMC20090003A1 (en) * | 2009-01-14 | 2010-07-15 | Meccanica Generale Srl | BATHTUB FOR WASHING MACHINE OR WASHING MACHINE. |
ES2463487A1 (en) * | 2012-11-27 | 2014-05-28 | Bsh Electrodomésticos España, S.A. | Household appliance with horizontal axis with counterweight (Machine-translation by Google Translate, not legally binding) |
EP2402496A3 (en) * | 2010-06-30 | 2015-07-08 | Jakor, s.r.o. | Tank with balance weight and manufacturing method for the same |
WO2022231255A1 (en) * | 2021-04-27 | 2022-11-03 | Lg Electronics Inc. | Laundry treatment apparatus |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US8635890B2 (en) * | 2007-01-10 | 2014-01-28 | Lg Electronics Inc. | Pedestal washing machine |
KR101091024B1 (en) * | 2009-04-03 | 2011-12-09 | 엘지전자 주식회사 | Washing machine |
KR101745890B1 (en) | 2010-12-20 | 2017-06-20 | 삼성전자주식회사 | Washing machine |
CN103255599B (en) * | 2012-02-20 | 2015-07-15 | 苏州三星电子有限公司 | Roller washing machine and balancing structure thereof |
CN105525484B (en) * | 2014-09-28 | 2020-04-14 | 青岛海尔滚筒洗衣机有限公司 | Inner barrel for washing machine and washing machine |
CN106283509B (en) * | 2015-05-29 | 2020-01-10 | 青岛海尔滚筒洗衣机有限公司 | Washing machine outer barrel and washing machine |
US10011937B2 (en) * | 2015-11-23 | 2018-07-03 | Whirlpool Corporation | Laundry treating appliance and method of assembly |
KR102511238B1 (en) * | 2018-07-12 | 2023-03-17 | 엘지전자 주식회사 | Balance weight mounting structure for washing machine and Balance weight mounting device |
CN110761028B (en) * | 2019-10-10 | 2023-06-30 | 无锡小天鹅电器有限公司 | Clothes treating apparatus |
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US6067822A (en) * | 1997-09-29 | 2000-05-30 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Concrete ring as a balancing weight at a washing solution container of a washing machine |
EP1270791A2 (en) * | 2001-06-21 | 2003-01-02 | Lg Electronics Inc. | Balance weight in drum type washing machine and manufacturing method thereof |
EP1426477A2 (en) * | 2002-11-06 | 2004-06-09 | BSH Bosch und Siemens Hausgeräte GmbH | Frontal closure for plastic tub for a domestic washing machine |
EP1460162A1 (en) * | 2003-03-21 | 2004-09-22 | BSH Bosch und Siemens Hausgeräte GmbH | Method of making a tub for a washing machine and tub thus made |
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US5974839A (en) * | 1997-12-23 | 1999-11-02 | Maytag Corporation | Counterbalance weight for laundry washing machine tub |
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DE10215254A1 (en) * | 2002-04-07 | 2003-10-16 | Wirthwein Ag | Ballast weight for washing machines |
KR100872854B1 (en) * | 2002-10-16 | 2008-12-10 | 엘지전자 주식회사 | Outer tub assembly for drum washing machine |
KR101055727B1 (en) * | 2004-06-01 | 2011-08-11 | 엘지전자 주식회사 | Drum washing machine |
-
2005
- 2005-02-04 KR KR1020050010537A patent/KR100697201B1/en not_active IP Right Cessation
- 2005-10-28 US US11/260,125 patent/US20060174666A1/en not_active Abandoned
- 2005-11-09 JP JP2005325220A patent/JP2006212419A/en not_active Withdrawn
- 2005-11-10 DE DE602005019969T patent/DE602005019969D1/en active Active
- 2005-11-10 EP EP05256931A patent/EP1688526B1/en not_active Expired - Fee Related
- 2005-11-16 CN CNA200510125361XA patent/CN1814899A/en active Pending
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US6067822A (en) * | 1997-09-29 | 2000-05-30 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Concrete ring as a balancing weight at a washing solution container of a washing machine |
EP1270791A2 (en) * | 2001-06-21 | 2003-01-02 | Lg Electronics Inc. | Balance weight in drum type washing machine and manufacturing method thereof |
EP1426477A2 (en) * | 2002-11-06 | 2004-06-09 | BSH Bosch und Siemens Hausgeräte GmbH | Frontal closure for plastic tub for a domestic washing machine |
EP1460162A1 (en) * | 2003-03-21 | 2004-09-22 | BSH Bosch und Siemens Hausgeräte GmbH | Method of making a tub for a washing machine and tub thus made |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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ITMC20090003A1 (en) * | 2009-01-14 | 2010-07-15 | Meccanica Generale Srl | BATHTUB FOR WASHING MACHINE OR WASHING MACHINE. |
EP2236659A1 (en) * | 2009-01-14 | 2010-10-06 | Meccanica Generale S.R.L. | Tub for washing machine or washer-drier |
EP2402496A3 (en) * | 2010-06-30 | 2015-07-08 | Jakor, s.r.o. | Tank with balance weight and manufacturing method for the same |
ES2463487A1 (en) * | 2012-11-27 | 2014-05-28 | Bsh Electrodomésticos España, S.A. | Household appliance with horizontal axis with counterweight (Machine-translation by Google Translate, not legally binding) |
WO2022231255A1 (en) * | 2021-04-27 | 2022-11-03 | Lg Electronics Inc. | Laundry treatment apparatus |
Also Published As
Publication number | Publication date |
---|---|
KR20060089785A (en) | 2006-08-09 |
DE602005019969D1 (en) | 2010-04-29 |
KR100697201B1 (en) | 2007-03-21 |
US20060174666A1 (en) | 2006-08-10 |
CN1814899A (en) | 2006-08-09 |
EP1688526B1 (en) | 2010-03-17 |
JP2006212419A (en) | 2006-08-17 |
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